13504541497 has 2 divisors, whose sum is σ = 13504541498. Its totient is φ = 13504541496.

The previous prime is 13504541437. The next prime is 13504541527. The reversal of 13504541497 is 79414540531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13501510416 + 3031081 = 116196^2 + 1741^2 .

It is a cyclic number.

It is not a de Polignac number, because 13504541497 - 2³¹ = 11357057849 is a prime.

It is not a weakly prime, because it can be changed into another prime (13504541437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6752270748 + 6752270749.

It is an arithmetic number, because the mean of its divisors is an integer number (6752270749).

Almost surely, 2^13504541497 is an apocalyptic number.

It is an amenable number.

13504541497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13504541497 is an equidigital number, since it uses as much as digits as its factorization.

13504541497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 13504541497 in words is "thirteen billion, five hundred four million, five hundred forty-one thousand, four hundred ninety-seven".